CN109260824A - A kind of dephosphorization control bacterial type PP cotton filter element and preparation method thereof - Google Patents
A kind of dephosphorization control bacterial type PP cotton filter element and preparation method thereof Download PDFInfo
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- CN109260824A CN109260824A CN201811009371.0A CN201811009371A CN109260824A CN 109260824 A CN109260824 A CN 109260824A CN 201811009371 A CN201811009371 A CN 201811009371A CN 109260824 A CN109260824 A CN 109260824A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2068—Other inorganic materials, e.g. ceramics
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0442—Antimicrobial, antibacterial, antifungal additives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/10—Filtering material manufacturing
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- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The present invention relates to a kind of dephosphorization control bacterial type PP cotton filter elements and preparation method thereof, pass through evenly dispersed a certain proportion of Fe (NO into the polypropylene of 166-200 DEG C of melting3)3·6H2O and La (NO3)3·6H2O powder, it is in 1~5% sodium hydroxide solution that concentration is immersed after wire drawing machine spinneret, and polypropylene fibre surface in situ generates Fe (OH)3With La (OH)3Nano particle, the polypropylene filaments for loading nano particle are drawn and tubulose filter core are made after compression moulding.The filter core is by the phosphorus recycling in Adsorption water, to achieve the purpose that inhibit bacterial growth, to solve the problems, such as that bacterial concentration increases in household water filter long-time use process.
Description
Technical field
The invention belongs to technical field of water purification, it is related to a kind of dephosphorization control bacterial type PP cotton filter element and preparation method thereof.
Background technique
Safe drinking water is related to most basic livelihood issues, the concern by more and more common people.With science and technology it is continuous
Development, Domestic water purifier are gradually come into huge numbers of families, are played a very important role in people's daily life.
Most water purifiers will appear the phenomenon that bacterial content increases in use currently on the market, if be changed without for a long time
Filter core even will appear the unusual condition that water outlet bacterial concentration is greater than water inlet bacterial concentration sometimes.The control bacterium of conventional water purifier is thought
Road is mainly to be reduced in water to assimilate organic carbon content with active carbon adsorption technology, inhibits the growth of bacterium by control carbon source
Breeding.But a distinct issues are, after activated carbon adsorption saturation, activated carbon surface and pore interior can be bred largely carefully
It is higher to eventually lead to bacterial concentration in water purifier discharge water for bacterium.
Summary of the invention
It is an object of the invention to make up the deficiency of existing water purification technology, the technical side of innovative proposition dephosphorization control bacterium
Method prepares a kind of reinforcing control bacterial type PP cotton filter element, it is intended to inhibit the growth and breeding of bacterium in water purifier long-time use process.
The purpose of the present invention is what is realized by following technological means:
A kind of dephosphorization control bacterial type PP cotton filter element, it is characterised in that: Fe (OH) is loaded by polypropylene filaments surface in situ3With
La(OH)3Nano particle, traction, compression moulding.
Moreover, the La (OH) loaded on polypropylene fibre3With Fe (OH)3Partial size be 20-200nm.
A kind of preparation method of dephosphorization control bacterial type PP cotton filter element, it is characterised in that: the following steps are included:
(1) melts pp material under the conditions of 166-200 DEG C of temperature, and Fe (NO is added into molten liquid3)3·6H2O
With La (NO3)3·6H2O powder is simultaneously sufficiently stirred, and mechanical stirring revolving speed is controlled in 150-200rpm；
(2) the mixed liquor that (1). obtains step immerses in 1~5% sodium hydroxide solution after wire drawing machine squeezes out, and impregnates
Time is 5-10min, takes out drying, obtains iron lanthanum modified polypropylene fiber silk, spare；
(3) (2) iron lanthanum modified polypropylene fiber silk that step obtains is drawn and tubulose filter core is made after compression moulding by.
Moreover, (1) the pp material is particle that partial size is 0.5-2mm to step.
Moreover, step (1) the polypropylene fusion liquid, Fe (NO3)3·6H2O and La (NO3)3·6H2The addition quality of O
Than for 100:(1~10): (1~10).
Moreover, the specification of the step (3) tubulose filter core is 5 cun, 8 cun, 10 cun, 20 cun, 40 cun or other sizes.
The advantages and positive effects of the present invention are:
1, different from traditional bacteriostasis method, the present invention looks for another way, using the dephosphorization control bacterium thinking of innovation, in traditional PP cotton
A kind of modified PP cotton filter element of Novel iron lanthanum is prepared on the basis of filter core, by micro in the Adsorption water of water purifier front end
Phosphorus, to inhibit the growth and breeding of bacterium in water purifier long-time use process, fungistatic effect is significant.
2, compared with traditional PP cotton filter element, the modified PP cotton filter element of iron lanthanum has very strong absorption to trace amounts of phosphorus in municipal tap water
Ability, first order filter core of the modified PP cotton filter element of iron lanthanum as household water filter, can be effectively reduced total phosphorus concentration in water purifier,
To effectively inhibit the growth and breeding of bacterium in water purifier.The Fe (OH) that modified PP cotton filter element is loaded3With La (OH)3Nanometer
Grain has very strong absorption affinity to Phos in water, the minimum concentration of Phos can be reduced to 0.001mg/L or less.
3、Fe(OH)3With La (OH)3Nano particle has stronger adsorption capacity to phosphorus, wherein La (OH)3Adsorption energy
Power is better than Fe (OH)3, it is contemplated that white La (OH)3Nano particle vision discrimination is lower, therefore loads a certain proportion of buff
Fe(OH)3Nano particle, to increase the identification of iron lanthanum modified PP cotton filter element and common PP cotton filter element.
4, Fe (OH) is loaded3With La (OH)3Granular size dephosphorization control bacterium effect is had a significant impact, loaded particle
Partial size is smaller, and the effect of dephosphorization control bacterium is better.Iron lanthanum of the present invention is modified the loaded La of PP cotton filter element (OH)3With Fe (OH)3
The particle size of particle is 20~200nm.
5, Fe (OH) inevitably occurs in the modified PP cotton filter element long-time use process of iron lanthanum3With La (OH)3Nanometer
The amount of dissolution of grain dissolution in water, the modified PP cotton filter element iron of iron lanthanum of the present invention and lanthanum be respectively 0.002mg/L and
0.0008mg/L, for a long time using the next any harm of health care belt that will not give human body.
6, the present invention is a kind of preparation method of dephosphorization control bacterial type PP cotton filter element, and the most prominent feature of this filter core is, preposition
Removal phosphorus recycling can effectively inhibit the growth and breeding of bacterium in water purifier, effectively prevent household water filter and use for a long time
The problem of bacterial concentration increases in the process.
Detailed description of the invention
Fig. 1 is the microcosmic surface form of iron lanthanum modified polypropylene fiber silk；
Fig. 2 is the grain size distribution of polypropylene fibre Surface Fe lanthanum nano particle；
Fig. 3 is to be discharged tp removal rate with the change curve (embodiment 1) of filtration time；
Fig. 4 is to be discharged tp removal rate phosphorus concentration with the change curve (embodiment 2) of filtration time；
Fig. 5 is to be discharged tp removal rate with the change curve (embodiment 3) of filtration time；
Fig. 6 is to be discharged tp removal rate with the change curve (embodiment 4) of filtration time.
Specific embodiment
Describe the embodiment of the present invention in detail with reference to the accompanying drawing；It should be noted that the present embodiment be it is narrative, no
It is restrictive, this does not limit the scope of protection of the present invention.
A kind of dephosphorization control bacterial type PP cotton filter element loads Fe (OH) by polypropylene filaments surface in situ3With La (OH)3Nanometer
Particle, traction, compression moulding.The La (OH) loaded on polypropylene fibre3With Fe (OH)3Partial size be 20-200nm.
The preparation method of above-mentioned dephosphorization control bacterial type PP cotton filter element, comprising the following steps:
(1) pp material (particle that partial size is 0.5-2mm) melts under the conditions of 166-200 DEG C of temperature, to molten liquid
Middle addition Fe (NO3)3·6H2O and La (NO3)3·6H2O powder is simultaneously sufficiently stirred, and mechanical stirring revolving speed is controlled in 150-
200rpm, polypropylene fusion liquid, Fe (NO3)3·6H2O、La(NO3)3·6H2The addition mass ratio of O is 100:(1~10): (1~
10)；
(2) the mixed liquor that (1). obtains step immerses in 1~5% sodium hydroxide solution after wire drawing machine squeezes out, and impregnates
Time is 5-10min, takes out drying, obtains iron lanthanum modified polypropylene fiber silk, spare；
(3) the polypropylene filaments that (2) drying iron lanthanum that step obtains is modified are drawn and tubulose are made after compression moulding by
Filter core, the specification of tubulose filter core are 5 cun, 8 cun, 10 cun and 20 cun etc..
Above-mentioned 1~5% sodium hydroxide solution in-situ preparation nano particle of use, prepared iron lanthanum modified polypropene are fine
The configuration of surface for tieing up silk is as shown in Figure 1.The particle diameter distribution of load iron lanthanum nano particle is as shown in Fig. 2, the partial size of nano particle is
20~200nm.
Embodiment 1
A kind of preparation method of dephosphorization control bacterial type PP cotton filter element, step include:
(1) PP GRANULES (particle that partial size is 0.5-2mm) melts under the conditions of 166 DEG C of temperature, adds into molten liquid
Enter Fe (NO3)3·6H2O and La (NO3)3·6H2O powder is simultaneously sufficiently stirred, and mechanical stirring revolving speed is controlled in 150rpm, polypropylene
Particle, Fe (NO3)3·6H2O、La(NO3)3·6H2The addition mass ratio of O is that (wherein, the quality of PP GRANULES is 100:1:1
200g, Fe (NO3)3·6H2The quality of O is 2g, La (NO3)3·6H2The quality of O is 2g)；
(2) mixed liquor immerses in 1% sodium hydroxide solution, soaking time 5min after wire drawing machine squeezes out, and takes out dry
It is dry, it is spare；
(3) the polypropylene filaments that (2) drying iron lanthanum that step obtains is modified are drawn and are made 5 cun after compression moulding by
Tubulose filter core.
Using Pests in Tianjin Binhai New Area municipal tap water as raw water, in raw water total phosphorus concentration be 0.08mg/L, free residual chlorine and
The content of total residual chlorine is respectively 0.15mg/L and 0.5mg/L.Under the conditions of water discharge speed 20L/min, continuous operation 12 hours, out
The concentration of total phosphorus is lower than 0.01mg/L in water, shows that the modified PP cotton filter element of iron lanthanum has very good Adsorption to total phosphorus in water
Effect.Bacterial content measurement uses LB culture medium flat plate counting method in water.After the modified PP cotton filter element of iron lanthanum continuously filters 12 hours,
0.05mL water sample is taken to be put on LB agar solid medium, after bacterium solution is smoothened using spreading rod, perseverance of the sealing culture at 37 DEG C
It is read after 24 hours in warm incubator.The detection method of total clump count is according to " standard test method for drinking water " (GB-
T-5750-2006).Tp removal rate is discharged with the change curve of filtration time as shown in figure 3, the water outlet after continuous operation 12 hours
In do not detect the presence of viable bacteria.
Embodiment 2
A kind of preparation method of dephosphorization control bacterial type PP cotton filter element, step include:
(1) PP GRANULES (particle that partial size is 0.5-2mm) melts under the conditions of 180 DEG C of temperature, adds into molten liquid
Enter Fe (NO3)3·6H2O and La (NO3)3·6H2O powder is simultaneously sufficiently stirred, and mechanical stirring revolving speed is controlled in 200rpm, polypropylene
Particle, Fe (NO3)3·6H2O、La(NO3)3·6H2The addition mass ratio of O is that (wherein, the quality of PP GRANULES is 100:5:1
200g, Fe (NO3)3·6H2The quality of O is 10g, La (NO3)3·6H2The quality of O is 2g)；
(2) mixed liquor immerses in 2% sodium hydroxide solution, soaking time 10min after wire drawing machine squeezes out, and takes out
It is dry, it is spare；
(3) the polypropylene filaments that (2) drying iron lanthanum that step obtains is modified are drawn and are made 8 cun after compression moulding by
Tubulose filter core.
Using Pests in Tianjin Binhai New Area municipal tap water as raw water, in raw water total phosphorus concentration be 0.08mg/L, free residual chlorine and
The content of total residual chlorine is respectively 0.15mg/L and 0.5mg/L.Under the conditions of water discharge speed 20L/min, continuous operation 24 hours, out
The concentration of total phosphorus is lower than 0.01mg/L in water, shows that the modified PP cotton filter element of iron lanthanum has very good Adsorption to total phosphorus in water
Effect.Bacterial content measurement uses LB culture medium flat plate counting method in water.After the modified PP cotton filter element of iron lanthanum continuously filters 12 hours,
0.05mL water sample is taken to be put on LB agar solid medium, after bacterium solution is smoothened using spreading rod, perseverance of the sealing culture at 37 DEG C
It is read after 24 hours in warm incubator.Tp removal rate is discharged with the change curve of filtration time as shown in figure 4, continuous operation
The presence of viable bacteria is not detected in water outlet after 24 hours.
Embodiment 3
A kind of preparation method of dephosphorization control bacterial type PP cotton filter element, step include:
(1) PP GRANULES (particle that partial size is 0.5-2mm) melts under the conditions of 200 DEG C of temperature, adds into molten liquid
Enter Fe (NO3)3·6H2O and La (NO3)3·6H2O powder is simultaneously sufficiently stirred, and mechanical stirring revolving speed is controlled in 200rpm, polypropylene
Particle, Fe (NO3)3·6H2O、La(NO3)3·6H2The addition mass ratio of O is 100:10:5 (wherein, the quality of PP GRANULES
For 200g, Fe (NO3)3·6H2The quality of O is 20g, La (NO3)3·6H2The quality of O is 10g)；
(2) mixed liquor immerses in 5% sodium hydroxide solution, soaking time 8min after wire drawing machine squeezes out, and takes out dry
It is dry, it is spare；
(3) the polypropylene filaments that (2) drying iron lanthanum that step obtains is modified are drawn and are made 10 cun after compression moulding by
Tubulose filter core.
Using Pests in Tianjin Binhai New Area municipal tap water as raw water, total phosphorus concentration is 0.08mg/L in raw water, in water discharge speed
Under the conditions of 20L/min, continuous operation 36 hours, the concentration of total phosphorus was lower than 0.02mg/L in water outlet, showed that iron lanthanum MODIFIED PP cotton filters
Core has good Adsorption effect to total phosphorus in water.Bacterial content measurement uses LB culture medium flat plate counting method in water.Iron lanthanum
The modified continuous filter 23 of PP cotton filter element takes 0.05mL water sample to be put on LB agar solid medium after 6 hours, will using spreading rod
After bacterium solution smoothens, sealing culture is read after 36 hours in 37 DEG C of constant incubator.When being discharged tp removal rate with filtering
Between change curve as shown in figure 5, not detecting the presence of viable bacteria in water outlet after continuous operation 36 hours.
Embodiment 4
A kind of preparation method of dephosphorization control bacterial type PP cotton filter element, step include:
(1) PP GRANULES (particle that partial size is 0.5-2mm) melts under the conditions of 200 DEG C of temperature, adds into molten liquid
Enter Fe (NO3)3·6H2O and La (NO3)3·6H2O powder is simultaneously sufficiently stirred, and mechanical stirring revolving speed is controlled in 200rpm, polypropylene
Particle, Fe (NO3)3·6H2O、La(NO3)3·6H2The addition mass ratio of O is 100:10:10 (wherein, the quality of PP GRANULES
For 200g, Fe (NO3)3·6H2The quality of O is 20g, La (NO3)3·6H2The quality of O is 20g)；
(2) mixed liquor immerses in 5% sodium hydroxide solution, soaking time 10min after wire drawing machine squeezes out, and takes out
It is dry, it is spare；
(3) the polypropylene filaments that (2) drying iron lanthanum that step obtains is modified are drawn and are made 20 cun after compression moulding by
Tubulose filter core.
Using Pests in Tianjin Binhai New Area municipal tap water as raw water, in raw water total phosphorus concentration be 0.08mg/L, free residual chlorine and
The content of total residual chlorine is respectively 0.15mg/L and 0.5mg/L.Under the conditions of water discharge speed 20L/min, continuous operation 72 hours, out
The concentration of total phosphorus is lower than 0.02mg/L in water, shows that the modified PP cotton filter element of iron lanthanum has good Adsorption to imitate total phosphorus in water
Fruit.Bacterial content measurement uses LB culture medium flat plate counting method in water.After the modified PP cotton filter element of iron lanthanum continuously filters 72 hours, take
0.05mL water sample is put on LB agar solid medium, after bacterium solution is smoothened using spreading rod, constant temperature of the sealing culture at 37 DEG C
It is read after 72 hours in incubator.Tp removal rate is discharged with the change curve of filtration time as shown in fig. 6, continuous operation 72
The presence of viable bacteria is not detected in water outlet after hour.
A kind of preparation method of dephosphorization control bacterial type PP cotton filter element according to the present invention, the modified PP cotton filter element of iron lanthanum is not
Only can suspended particulate substance in high-efficient filter water removal, to extend the service life of ultrafiltration membrane and reverse osmosis membrane in water purifier, and
And can trace amounts of phosphorus effectively in Adsorption water, filtered water is due to lacking crucial phosphorus nutrition element, microbial activity
Greatly inhibited, to achieve the purpose that antibacterial.
For the microbial nutrition substance often investigated in municipal tap water based on carbon source, the index applied at present predominantly can
Assimilate organic carbon, can assimilate organic carbon can be good at indicating feedwater quality by potential microorganism grow polluted degree or
Indicate the stability of aqueous bio.A large number of studies show that autotrophy is micro- when that can assimilate organic concentration of carbon in water lower than 0.01mg/L
The growth of biology, which just will receive, greatly to be limited, if organism in water can assimilate organic concentration of carbon higher than 0.2mg/L, even if chlorine residue
Amount reaches 1mg/L, and water system is still easy the pollution by microorganism diauxic growth, relies on chlorine residue merely in municipal tap water
The safety of water supply quality is not ensured that.Important instruction parameter of the phosphorus as control microorganism diauxic growth, is that cell is grown
Must element, replace biology that can assimilate as the important indicator of restriction micro-organisms growth and breeding using phosphorus for the first time in Northern European countries
Organic carbon, and clearly prove that Phos can effectively inhibit the diauxic growth of microorganism.Therefore, steady using phosphorus as organism in water
Qualitative governing factor is a kind of forward-looking Handling of Stabilizing Water Quality technology.
Claims (6)
1. a kind of dephosphorization control bacterial type PP cotton filter element, it is characterised in that: load Fe (OH) by polypropylene filaments surface in situ3And La
(OH)3Nano particle, traction, compression moulding.
2. a kind of dephosphorization control bacterial type PP cotton filter element according to claim 1, it is characterised in that: loaded on polypropylene fibre
La (OH)3With Fe (OH)3Partial size be 20-200nm.
3. a kind of preparation method of dephosphorization control bacterial type PP cotton filter element as described in claim 1, it is characterised in that: including following step
It is rapid:
(1) melts pp material under the conditions of 166-200 DEG C of temperature, and Fe (NO is added into molten liquid3)3·6H2O and La
(NO3)3·6H2O powder is simultaneously sufficiently stirred, and mechanical stirring revolving speed is controlled in 150-200rpm；
(2) the mixed liquor that (1). obtains step immerses in 1~5% sodium hydroxide solution, soaking time after wire drawing machine squeezes out
For 5-10min, drying is taken out, iron lanthanum modified polypropylene fiber silk is obtained, it is spare；
(3) (2) iron lanthanum modified polypropylene fiber silk that step obtains is drawn and tubulose filter core is made after compression moulding by.
4. a kind of preparation method of dephosphorization control bacterial type PP cotton filter element according to claim 3, it is characterised in that: step (1) institute
The pp material stated is the particle that partial size is 0.5-2mm.
5. a kind of preparation method of dephosphorization control bacterial type PP cotton filter element according to claim 3, it is characterised in that: step (1) institute
Polypropylene fusion liquid, the Fe (NO stated3)3·6H2O and La (NO3)3·6H2The addition mass ratio of O is 100:(1~10): (1~
10)。
6. a kind of preparation method of dephosphorization control bacterial type PP cotton filter element according to claim 3, it is characterised in that: step (3) institute
The specification for the tubulose filter core stated is 5 cun, 8 cun, 10 cun, 20 cun, 40 cun or other sizes.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811009371.0A CN109260824A (en) | 2018-08-31 | 2018-08-31 | A kind of dephosphorization control bacterial type PP cotton filter element and preparation method thereof |
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| CN201811009371.0A CN109260824A (en) | 2018-08-31 | 2018-08-31 | A kind of dephosphorization control bacterial type PP cotton filter element and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110755925A (en) * | 2019-10-24 | 2020-02-07 | 郑州恒博环境科技股份有限公司 | Ferrate oxidant composite fiber filter material and preparation thereof |
| CN110755928A (en) * | 2019-10-24 | 2020-02-07 | 郑州恒博环境科技股份有限公司 | Ferrate oxidant composite spray-melting filter element and preparation thereof |
| CN115155525A (en) * | 2022-07-28 | 2022-10-11 | 安徽农业大学 | Iron ion-loaded aminated polypropylene fiber and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1255894A (en) * | 1969-02-04 | 1971-12-01 | Comptoir De La Filtration Cofi | Improvements in or relating to filters |
| CN102172445A (en) * | 2011-02-26 | 2011-09-07 | 福建金源泉科技发展有限公司 | Production process and structure of multifunctional PP (polypropylene) cotton filter element |
| CN102553533A (en) * | 2012-03-27 | 2012-07-11 | 上海大学 | Method for preparing composite dephosphorus adsorbent by virtue of activated carbon fiber loaded with metal |
-
2018
- 2018-08-31 CN CN201811009371.0A patent/CN109260824A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1255894A (en) * | 1969-02-04 | 1971-12-01 | Comptoir De La Filtration Cofi | Improvements in or relating to filters |
| CN102172445A (en) * | 2011-02-26 | 2011-09-07 | 福建金源泉科技发展有限公司 | Production process and structure of multifunctional PP (polypropylene) cotton filter element |
| CN102553533A (en) * | 2012-03-27 | 2012-07-11 | 上海大学 | Method for preparing composite dephosphorus adsorbent by virtue of activated carbon fiber loaded with metal |
Non-Patent Citations (1)
| Title |
|---|
| 白晓惠，孟明群: "《城市供水管网水质安全保障技术》", 29 February 2012, 上海交通大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110755925A (en) * | 2019-10-24 | 2020-02-07 | 郑州恒博环境科技股份有限公司 | Ferrate oxidant composite fiber filter material and preparation thereof |
| CN110755928A (en) * | 2019-10-24 | 2020-02-07 | 郑州恒博环境科技股份有限公司 | Ferrate oxidant composite spray-melting filter element and preparation thereof |
| CN115155525A (en) * | 2022-07-28 | 2022-10-11 | 安徽农业大学 | Iron ion-loaded aminated polypropylene fiber and preparation method and application thereof |
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Application publication date: 20190125 |